Other
International Association for Jazz Education: Homepage
Perhaps the country's foremost organization dedicated to jazz education. The site is quite user friendly and has huge, well organized list of weblinks.
Other
Visual Jazz Publications
This company produces educational materials to help you succeed in jazz improvisation and sight reading. Of note on their site is "The Art of Improvisation," a free download that guides you through the improvisational process.
University of Wisconsin
Welcome to the World of Jazz Improvisation
This site was developed by a college jazz educator based on one of her improvisation classes. Material suitable educators or the student who is serious about learning jazz improvisation.